| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] why do they [vb infin] | 16 |
|
| 2 | [adv] why [vb base] they [vb infin] | 16 |
|
| 3 | so why [vb base] they [vb infin] | 6 |
|
| 4 | then why [vb base] they [vb infin] | 5 |
|
